I bought this trimmer from Amazon 1 year back. I am really happy with this product.
It is really convenient and Easy to use
Pros:
Ergonomic design for easier handling
Light on the adaptor indicates when the battery is charging
worldwide voltage, no oil needed
Detacheable head for easy cleaning
Long Battery backup.
0.5mm precision
Easy to select and lock-in length settings, 0.5mm to 10mm.
Cons: Couldn’t find any till now.